d. If the frequency of the homozygous dominant genotype is 0.49, what is the fre

Question

d. If the frequency of the homozygous dominant genotype is 0.49, what is the frequency of the homozygous recessive genotype? e Which Hardy- Weinberg equation relates the frequencies of the alleles at a particular gene locus? f. Which Hardy-Weinberg equation relates the frequencies of the genotypes for a particular gene locus? &. Which Hardy-Weinberg equation relates the frequencies of the phenotypes for a gene? Additional problems to test your understanding of the Hardy-Weinberg Principle are at the end of this exercise.

Explanation / Answer

Given, homozygous dominant allele frequency = 0.49

It means that P2 = 0.49

Therefore

P = sq root of 0.49 = 0.7

And we know that

P+q = 1

Therefore 0.7+q = 1

Therefore q = 0.3

So the genotypic frequency of the recessive homozygous allele = square of 0.3

= 0.09

2. The equation

P + q = 1 is the hardy weinberg equation relates the frequencies of the alleles at a particular gene locus

3. p2 + q2 +2pq = 1

Is the hardy weinberg equation relates the frequencies of the genotype for a particular gene locus

4. p2 + q2 +2pq = 1

Is the hardy weinberg equation relates the frequencies of the phenotype for a particular gene locus

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